Home / 1,561,170.30-2,154,418.59-872,866.72

Finding the Fourth Proportional to 1,561,170.30, 2,154,418.59 and 872,866.72

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Solution

The fourth proportional to 1,561,170.30, 2,154,418.59 and 872,866.72 is: 1,204,558.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,561,170.30 : 2,154,418.59 = 872,866.72 : x
  2. Step 2: Convert to fraction form
    1,561,170.30/2,154,418.59 = 872,866.72/x
  3. Step 3: Cross multiply
    1,561,170.30x = 2,154,418.59 × 872,866.72
  4. Step 4: Simplify right side
    1,561,170.30x = 1,880,520,288,160.32
  5. Step 5: Solve for x
    x = 1,880,520,288,160.32/1,561,170.30
  6. Step 6: Final answer
    x = 1,204,558.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.